| Supreme Logistix Ltd | Transport & logistics | 2024 |
| Supreme Point Limited | Wholesale & retail | 2022 |
| Supreme Properties Solutions Ltd | Construction | 2025 |
| Supreme Shiv Limited | Real estate | 2024 |
| Supreme Sounds UK Ltd | Arts & recreation | 2019 |
| Suraiya Investment Limited | Real estate | 2016 |
| Surajbuildandsocial Limited | Construction | 2025 |
| Surdam Ltd | Construction | 2021 |
| Sure Staff Solutions Ltd. | Other services | 2025 |
| Sure Success Consultants Ltd | Professional & scientific | 2022 |
| Surebay Developments Limited | Real estate | 2016 |
| Surgident Supplies Limited | Wholesale & retail | 2024 |
| Surikaron Limited | Wholesale & retail | 2012 |
| Surkhab Fashions Limited | Wholesale & retail | 2025 |
| Surrey Food & Wine Ltd | Wholesale & retail | 2014 |
| Surya Blends Limited | Wholesale & retail | 2025 |
| SUS Enterprise Ltd | Administrative & support | 2017 |
| SUS Regulatory Limited | Health & social care | 2006 |
| Sushant LOK Ltd | Real estate | 2025 |
| Sushila Limited | Real estate | 2021 |
| Sushimi Ltd | Wholesale & retail | 2025 |
| Sushimi Wandsworth Ltd | Wholesale & retail | 2026 |
| Sussex Superstore Ltd | Wholesale & retail | 2021 |
| Sutton Food & Wine Ltd | Wholesale & retail | 2018 |
| Sutton Way Property Ltd | Real estate | 2022 |
| Suvinex Construction Management Ltd | Hospitality | 2025 |
| SV Building and Roofing Ltd | Construction | 2025 |
| SV Dreamdecor Ltd | Construction | 2026 |
| SV Southall Ltd | Hospitality | 2010 |
| SV Trading UK Ltd | Wholesale & retail | 2018 |
| Svief Limited | Wholesale & retail | 2024 |
| SVR Hire Ltd | Wholesale & retail | 2023 |
| SW Corporation Limited | Real estate | 2023 |
| Swadi Products UK Limited | Wholesale & retail | 2006 |
| Swan Shopping Centre Ltd | Real estate | 2021 |
| Swandale Services Ltd. | Administrative & support | 2021 |
| Swaze Logistics Limited | Administrative & support | 2022 |
| Swecart Ltd | Wholesale & retail | 2023 |
| Sweet Box Wholesale & Retail Ltd | Wholesale & retail | 2016 |
| Sweet Looks Wellness & Beauty Ltd | Other services | 2024 |
| Sweetbox International Ltd | Wholesale & retail | 2026 |
| SWI Organics Limited | Wholesale & retail | 2021 |
| Swift Car Automotive Ltd | Wholesale & retail | 2025 |
| Swift Digital Technology Ltd | Financial services | 2019 |
| Swift Heating Services Ltd | Construction | 2014 |
| Swift Link Couriers Limited | Transport & logistics | 2026 |
| Swiftlilearn Ltd | Wholesale & retail | 2025 |
| Swiss Capital Partners Limited | Real estate | 2001 |
| Swiss Securities Corporation Limited | Real estate | 1984 |
| Swisscorp Limited | Real estate | 1988 |
| Syaan Global Ltd | Administrative & support | 2019 |
| Syafiq KAY Ltd | Professional & scientific | 2021 |
| Syed PR & Publishing Limited | Information & communication | 2017 |
| Syed Property Investments Limited | Real estate | 2025 |
| SYM Designs Limited | Wholesale & retail | 2002 |
| Symec Limited | Professional & scientific | 1998 |
| Synamix Solutions Ltd | Wholesale & retail | 2025 |
| Synapsera Limited | Professional & scientific | 2026 |
| Synesthesia Bloom & Bites Ltd | Wholesale & retail | 2025 |
| Syrckame Ltd | Wholesale & retail | 2022 |
| Syrian House Foundation Limited | Health & social care | 2025 |
| Sysglobal Ltd | Other services | 2018 |
| Systematic GAS Ltd | Construction | 2026 |
| Sytecross Investments Limited | Real estate | 2001 |
| T & E Enterprises (CTA) Limited | Extraterritorial | 2017 |
| T & R Property Ventures Ltd | Real estate | 2022 |
| T & Sons Transport Limited | Transport & logistics | 2018 |
| T Corporation Limited | Other services | 2013 |
| T D Builders (London) Ltd | Construction | 2021 |
| T K Builders Ltd | Construction | 2026 |
| T M T Food & Wine Ltd | Wholesale & retail | 2022 |
| T&C Properties Real Estate Limited | Wholesale & retail | 2022 |
| T&D Reluxe Ltd | Wholesale & retail | 2025 |
| T&O Investments Limited | Hospitality | 2015 |
| T.A.S.K. Building Solutions Limited | Construction | 2010 |
| T.M.Property Consultancy Limited | Real estate | 2025 |
| T4 Hayes Ltd | Wholesale & retail | 2022 |
| Tabassum Halal Foods Ltd | Hospitality | 2024 |
| Tabz’S Lounge Ltd | Other services | 2017 |
| Tahareem Traders Ltd | Information & communication | 2024 |
| Tahir International Ltd | Wholesale & retail | 2026 |
| Tailorka Ltd | Professional & scientific | 2025 |
| TAJ Building Services Limited | Construction | 2012 |
| TAJ Capital 1 Ltd | Real estate | 2025 |
| TAJ Capital Ltd | Real estate | 2024 |
| TAJ Construction Services Ltd | Construction | 2022 |
| TAJ Jewels Limited | Wholesale & retail | 2018 |
| TAJ London Builders Ltd | Construction | 2019 |
| TAJ Mahal Sweets & Bakers Ltd | Hospitality | 2019 |
| TAJ Online Ltd | Wholesale & retail | 2023 |
| TAJ Urban Style Ltd | Other services | 2026 |
| TAJ Virdee Limited | Professional & scientific | 2000 |
| TAK Productions Ltd | Information & communication | 2024 |
| TAL and Sons Ltd | Real estate | 2017 |
| Talent Recruitment Ltd | Administrative & support | 2025 |
| Talent-It Limited | Information & communication | 2010 |
| Talents Gate Management Ltd | Other services | 2022 |
| Talhadi Limited | Wholesale & retail | 2018 |
| Tals Manufacturing Limited | Manufacturing | 2025 |
| Talwar Motors Ltd | Wholesale & retail | 2024 |